[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Phylum Mollusca Linnaeus, 1758 - molluscs
     Class Bivalvia Linnaeus, 1758 - bivalves
       Family Cuspidariidae Dall, 1886
         1 Genus Cuspidaria Nardo, 1840
         2 Genus Tropidomya Dall & Smith, 1886
         3 Genus Cardiomya Adams, 1864
         4 Genus Rhinoclama Dall & Smith, 1886
         5 Genus Myonera Dall & Smith, 1886
         6 Genus Halonympha Dall & Smith, 1886
         7 Genus Protocuspidaria Allen & Morgan, 1981